<!DOCTYPE html>
<html lang="en">

<head>
          <meta charset="UTF-8">
          <meta name="viewport" content="width=device-width, initial-scale=1.0">
          <title>Document</title>
</head>

<body>
          <form>
                    <select name="列表框名称" size="">
                              <option value="选项值">1</option>
                              <option value="选项值">2</option>
                    </select>

          </form>
</body>

</html>